protects your investment in major offshore...
TRANSCRIPT
SUBSEA PIPELINE SYSTEMS
Pressure Balanced Safety Joint
Protects your investment in major offshore systemsThe Pressure-Balanced Safety Joint (PBSJ) separates at a preset axial load, independent of pipeline pressure, to prevent damage to platforms, offshore tanker loading installations, subsea production systems, or lateral tie-ins caused by a dragging anchor, mud slide, iceberg scouring, or other forces. Employing the PBSJ in conjunction with optional upstream and downstream check valves also prevents product loss and environmental damage. The PBSJ is completely assembled and tested at the factory; no on site preparation is required before connecting it into the pipeline.
Tension load is transferred through the PBSJ sleeve to the body via shear pins. When a potentially damaging external force equal to or exceeding the shear-pin rating is applied, the pins shear and the PBSJ separates, preventing damage to your equipment. Internal pipeline pressure and external water pressure will not cause the PBSJ to separate, because a pressure compensating piston balances hydrostatic loads.
The rated separation load can be easily changed at any time prior to installation by varying the number of shear pins. A separated PBSJ can be reinstalled after being refurbished by Oil States.
The PBSJ is easily installed with the pipeline or flowline, using conventional construction techniques, working from lay barges or reel barges. A removable split retainer ring protects the shearing mechanism against tension loads during installation. A diver removes this retainer ring after pipeline installation is complete.
The standard PBSJ is available in a variety of configurations, including butt-weld by butt-weld and flange by flange. The later is available with optional upstream and/or downstream check valves. The check valves are full
opening, flapper-type designs with subsea trim. The downstream check valve is a conventional design, but the upstream valve is used in the reverse and is modified for the PBSJ. An extention sleeve attached to the sleeve of the PBSJ holds the springloaded flapper of the upstream check valve open and allows pigging from either direction during normal pipeline operation. If a downstream check valve is incorporated, it should have a lock-open feature for the flapper if bi-directional pigging is anticipated.
PBSJ with optional upstream and downstream check valves
OIL STATES INDUSTRIES Manufacturing, Engineering & Sales6120 E. Orem DriveHouston, Texas 77048 USATel +1 713 445 2210Fax +1 713 445 2380Tel +1 985 868 0630
Copyright 2018, Oil States Industries, Inc. All rights reserved.
Sales Offices:Europe & EurasiaFRANCE5 Allée des Mésanges13012 Marseille, FranceTel +33 491 95 60 51
AZERBAIJANVagif Mustafazade Street 6/101st Floor, Sahibtac Business CentreOld City, Baku AZ1010, AzerbaijanTel/Fax +994 12 598 1125
Asia & OceanaSINGAPORE 42-H Penjuru RoadSingapore 609158Tel +65 6773 7555Fax +65 6773 7667
MALAYSIA29-1, Pangsapuri Servis(Suite) Binjai 8 Premium SOHOLorong BinjaiKuala Lumpur, Malaysia 50450Tel +60 3 2710 7951
AUSTRALIASuite 139, Level 1 580 Hay StreetPerth WA, 6000AustraliaTel +61 8 9321 3777
Middle East & AfricaUAEHDS Tower, Unit 2209, Cluster FJumeirah Lakes TowersDubai, United Arab EmiratesTel +971 4 452 8482Fax +971 4 368 8403
South AmericaBRAZIL 02 Corporate & Offices Ed. Evolution III, Bloco 2, Sala 105Av. Paisagista José Silva de AzevedoNeto, 200Barra da Tijuca, RJ BrazilCEP 22775-056Tel +55 21 3503 2400
SUBSEA PIPELINE SYSTEMS
SUBSEA PIPELINE SYSTEMS
Pressure Balanced Safety Joint
18HP\04-18\100
Design SpecificationsPressure-Balanced Safety Joints meet the requirements of API 6H and are designed in accordance with ASME Pressure Vessel Code, Section VIII, Division 2, unless otherwise specified. Configurations of the butt-weld ends are in accordance with ASME B16.5 or MSS SP-44 to match the pipeline. Materials are OSI standard material specifications, or to meet customer design specifications.
The minimum recommended separation load of a PBSJ is assessed for the specific application. PBSJs are designed to separate within 20% of the specified value.
Ordering InformationPlease provide the following information on any purchase order or request for quotation:• Nominal pipe size• Pipe wall thickness or bore• Pipe grade• Design rating• Separation loads• Installation water depth• Configuration• Flange type and specification, if applicable
A Pressure-Balanced Safety Joint provides sure protection when used in a lateral tie-in line.
A Pressure-Balanced Safety Joint prevents damage to the riser and possibly to the jacket.
When installed with subsea trees, a Pressure-Balanced Safety Joint protects all seafloor equipment.
A Pressure-Balanced Safety Joint provides sure protection when used in a lateral tie-in line.
A Pressure-Balanced Safety Joint prevents damage to the riser and possibly to the jacket.
When installed with subsea trees, a Pressure-Balanced Safety Joint protects all seafloor equipment.